Which of these would you consider makers of low end or utility type only SxSs?
I would think Stevens/Savage, Iver Johnson, Harrington & Richardson, would fit in this category.
Although all those named did make low end guns, Savage made the real Foxes after acquiring that company, and I think most people would probably not place the Iver Johnson Skeeter in the low end/utility category. Seems I recall H&R may have made some higher grade guns at one time, but I've never seen one that I can remember.
Emil Flues made some guns under his own name as well as designing the famous Flues model for Ithaca, but I guess he'd be more of a custom maker than a company.